Comparison

LaunchDarkly vs GrowthBook

LaunchDarkly and GrowthBook both land on Depends.

LaunchDarkly

Depends

Confidence: High

Buy if you are a mid-size or large engineering org that needs progressive delivery and AI runtime control and can absorb five-figure annual contracts.

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GrowthBook

growthbook.io

Depends

Confidence: Medium

Buy it if your team runs real A/B tests and already has a data warehouse; the open-source core and per-seat pricing are strong value.

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LaunchDarkly versus GrowthBook
Compare	LaunchDarkly	GrowthBook
Verdict	Depends	Depends
Best for	Large engineering orgs	Product teams with a data warehouse
Who it's not for	Startups and small dev teams	Small teams that just need simple feature toggles
Privacy	Mature program: managed bug bounty, ISMS addendum, public trust center; a disclosed 2025 outage and two dated ecosystem CVEs exist.^⁸	No known public vulnerabilities found in the sources reviewed.
Support quality	No user evidence on support quality found.	No support evidence in sources
Public sentiment	Developers widely respect the product's polish and reliability but frequently push back on its cost and small-team fit.^¹	Users consistently praise ease of use and powerful features, especially easy A/B testing, at 4.6/5 on G2.^¹
Biggest gotcha	Usage-based pricing can balloon fast; enterprise deals commonly run $20,000+ per year.^⁵	Open-source core lacks enterprise SLAs; support guarantees require paid negotiation.

Pick LaunchDarkly when

Large engineering orgs
Progressive delivery teams
AI agent rollout control
Teams needing flag governance

When LaunchDarkly is not a fit

Startups and small dev teams
Anyone avoiding five-figure contracts
Simple on/off toggle needs . use a config file
Teams wanting predictable flat-rate billing

Pick GrowthBook when

Product teams with a data warehouse
Teams replacing LaunchDarkly on a budget
Engineering orgs running real A/B tests
Open-source-first engineering cultures

When GrowthBook is not a fit

Small teams that just need simple feature toggles
Companies with no data warehouse or analysts
Non-technical marketers wanting turnkey no-code testing
Buyers expecting hands-on enterprise support on the free tier

Sources

LaunchDarkly Reviews . G2g2.com
review
LaunchDarkly Reviews . Gartnergartner.com
review
LaunchDarkly Reviews . AWS Marketplaceaws.amazon.com
review
Why is LaunchDarkly this expensive? . Redditreddit.com
review
LaunchDarkly Pricing Guide . Spendflospendflo.com
official
LaunchDarkly Pricing 2026 . GrowthBookgrowthbook.io
official
LaunchDarkly security trust pagelaunchdarkly.com
security
ld-relay CVE-2022-2097 . GitHubgithub.com
security
October 20 Service Disruption . LaunchDarklylaunchdarkly.com
security
LaunchDarkly raises $200M at $3B . Forbesforbes.com
news
LaunchDarkly funding profile . PitchBookpitchbook.com
news
Feature-flagging via LaunchDarkly, moved to Statsigc5r.medium.com
review
GrowthBook homepagegrowthbook.io
official
GrowthBook ranks #2 in Feature Flags & Experimentation (4.6/5, 24 G2 reviews)devtune.ai
review
growthbook/growthbook on GitHubgithub.com
official
Open Source Feature Flag Platform . GrowthBookgrowthbook.io
official